Improvement in pitmen



j. R. TAYLUR.

i Pitman. i No. 165,040. Y Parentedlunezsmava ATTUIINEYS.

THE GRAPHIC C0.PHOT0LITH.39&41 PARK PLACLNAY.

JOHN R. TAYLOR, OF EAGLE POINT, ILLINOIS.

IMPROVEMENT IN PI'TMEN.

S peciication forming part of Letters Patent No. 165,054), dated June 29, 1875 application filed April 25, 1874.

To all whom t may concern:

Be it known that I, J oHN R. TAYLOR, of Eagle Point, in the county of Ogle and State of Illinois, have invented anew and useful Improvement in Pitmairbonnection for Harvesters, &c., of which the following is a speciication:

Figure 1 is a top view of my improved connection, parts being broken away, and parts being shown in section, to show the construction. Fig. 2 is a detail cross-section of the same, taken through the line m x, Fig. 1. Fig. 3 1s a front view of the part connected with the sickle-bar. Fig. 4 is a detail section, taken through the line y y, Fig. l. Fig. 5 is a view of the part shown in section in Fig. 4.

Similar letters of reference indicate corresponding parts. My invention has for its object to furnish improved pitman-connections for connecting the driving-power with the sicklebar of mowers, reapers, and harvesters, which shall be so constructed as to enable the wear to be taken up at the pivoting or working points, and which shall be simple in construction, strong, durable, and easily adjusted.

The invention consists in the construction and combination of parts hereinafter described and claimed. l

A is the driving-shaft. B is the crankwheel, attached vto the end of the shaft A,

and having a crank-pin, C, attached to it, to -which is pivoted the end of the pitman D. The pin O passes through a slot in the end of the pitman D, and is secured in place by the boxing E-F, the part E of which is statlonary, and is dovetailed or otherwise secured to said pitman. The other part F slides 1n a groove or recess in the pitman D, and is secured to said pitman by a bolt, G, which passes through a hole in the pitman and a longitudinal slot in the boxing-block F. The part r block F is held up against the pin C by a bolt, H, the forward side of which is inclined or tapered, and rests against an incline in the end of the block F, sothat the said block may be pushed up against the pin C by screwing up the nut ofthe said bolt H. The other or outer end of the pitman D is pivoted to the end of the bar, block, or lever I, by a ball-pin, J, which Works between the parts of the boxing K L,

the part K of which is stationary, and is secured to the pitman D. The other part L is movable, is recessed to receive the bolt M, by which it is secured in place, and has an in` clined notch formed in its end to receive the incline or taper of the bolt N, so that it may be moved to take up the wear by tightening the nut of the said bolt N. The rocking-bar or lever I has a ball, O, formed upon its forward end, which works between the parts of the boxing P Q, the part P of which rests against the rounded end of the block attached to the sickle-bar R. The part Q of the boxing is movable, is slotted to receive the bolt S, by which it is secured in place, and has an inclined notch formed in its outer end to receive the inclined or tapered side of the bolt T, by which it is held. up against the ball O. The three sets of boxing and their bolts are thus the same, and take up the Wear in the same way. The bar or lever I works upon a pin, U, secured to a bar, V, which extends across and is secured to the platform of the machine. The part of the bar V to which the pin Uis attached is strengthened by the plates W X, and bolts Y. The plateWpasses around the lower side and the side edges of the bar V, and is secured by the bolts Y, which pass through its end parts, and through the said vbar V. The ends of the plate W project a little above the bar V for the ends of the plate X, which is placed upon the bar V, and

through which the pin U passes to labut against, as shown in Fig. 2. The pin U Works in the boxing Z A', which is' placed in a slot in the rocking-bar I. The larger part Z ot' the boxing is litted into the slot of the bar I, and is secured in place by two bolts, B', passing through the said bar and part, as shown in Fig. l.

In one side oi' the block Z is formed a square notch, the bottom of which is concaved, to receive the pin U. The other or smaller part A of the boxing is litted into the notch in the block Z, and its forward side is concaved to receivel the pin U. As the boxing Z A and the-center pin U wear, the said boxing is tightened upon the said pin by blocks C', interposed between the part A and the side of the slot in the bar I, and which may be increased in thickness as the said boxing and pin Wem'.` The pin U is made with shoulders, vided with an inclined. oi1 tapering heed, zuid as shown in Fig. 2, to prevent its Washer and :t locking-bolt for the adjustable bearing, :tll nut from binding upon the boxing` Z A. the parts being constructed and relatively zn*- Having thus described my invention, Iclaiin ranged in respect to a pitman and its connecas new and desire to secure by Letters Pattions, in the manner herein set forth.

entg JOHN R. TAYLOR.

The combination of an adjustable slotted Witnesses:

bearing-block, having an inclined notch, a JOSEPH OLER,

Xe-d bearing-block, an adjustable bolt pro JAMES C. LUOKEY. 

